Mechanism for the manufacture of seamless tubes.



PATENTBD FEB. l2, 1907.

M. F. CAPRON. MECHANISM FOR THE MANUFAC TURBO? SEAMLESS TUBES. APPLICATION FILED MAY s1, 190;. RBNEWBD JUNE 29, 190e.

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. @mentar .www f6 M. F. GAPRON.

PATENTED FEB. l2, 1907.

MEGHANISM FOR THE MANUPAGTURE OF SEAMLESS TUBES.

APPLICATION FILED MAY 31, 19,05. RBNEWED JUNE ze, 1906.

2 SHEETS-SHEET 2.

' residingl at Elyria, in the coi-.nty of Lorain MARSHALL F. CPRON, OF ELYRIA, GHIO.

MECHANSNl FOR THE No. seas-es.

Specification of Letters Patent.

MANUFATURE 0F SEANILESS TUBES.

raten-hea Feb. 1o, iso?.

Application filed May 3l, 1905. Renewed June 29, 1906, Serial No. 324.054.

.To r/,l irl/om t may conc/:Wt:

Be it, known that l., l\l.\nsnALL F. @Arnd/N,

and State of Ohio, a rilizen ot the United States, have invented or discovered Certain new and iiselnl improvements in Mechanism tor the Manrt'aetnre ol." Seamless Tribes, of which improvements the l'ollon ing is a speciiieation.

ln an api'ilieation tiled Balay 26, 1905, Serial No. 262,468, I have shown and described certain improvements in mechanism for piercing billets,A such improvements Consisting, generally stated, in. sritable mechanism lor shitting a mandrel-bar to and from operativo position and inthe employment olf stitable guides or supports for the mandrel-bar and the billet as the lat ter is being developed along ,the mandrel-bar. In the machine described in that application provision was made for lifting the billet ont of the machine and discharging it on either side.

The present inviention has for its object the employment ol' itable glides in addition to the. billet and mandrel-bar g1 ides shown in said application, whereby the mandrel-bar will be sepported and gr ided as it being l shifted to operative position and additional guides will be atl'orded to the'biliet as it is being developed along the mandrel-bar, sneh additionalg; ides or supports being so constrneted as to be Capable ot' being shifted 'from operative position by the advancing billet, thereby permitting the billet from which the mandrel-bar has been withdrawn to drop on the opening ol' the bilIet-sippOrts z onto itable g: ides. n hereby it may be directed o; t l'rom either side ot the machine.

'lhe invention is hereinalter more lilly described and claimed.

In the accompanying drawings, Yforming a part ol this speciliration, ltigzre 1 is a top employed.

plan view ot a hillet-pierring meehanism having my improvements applied thereto.

Fig. 3 is a sectional elevation on a plane indieated by the line lll lll, Fig. l. Fig. A't is a transverse seetion on a plane indicated b v the line lV lV looking` in the'direction of l the arrow, Fig. l, said 'ligzre being on enl larged scale. ltig. 5 is a view, partly in soel tion and partly in elevation, otz a portionot l the machine,-ilhst'rating the several g1 ides f Vln the practice et my invention the man.; l

plie ation referred to, to a carriage 3, mounted on ways 2 at one end of the machine-L e., at the righthand end', as shown in'liigs. 1, 2, and Zut-and is adapted tolle shifted bach and forth by sritable mechanism operating` throigh the sprocket-chain 5. In iront of the portion of the machine on which the Carriage operates and between it and the gt ides hereinafter to be described l preferably l0- cate a` pair of sr,pporting-rollers 24 for the mandrel-bar, such si pporting-rollers being espeeiallyiset'tl for the pi rpose stated/when the mandrel has been dran n back/6r away from the -rolls A.. As stated in the application above referred to, it is preferred to put the stripper-plate 39, whereby the billet is'held stationary while the mandrel is drawn ont or away from the rolls A, on the housings `or bearings ot the rollers 24.

A series of two or more doors or vWings 25, which are vmounted on vertical axes and caused to move in unison by means of geared sectors 26, are arranged along at suitable intervals on the frame of the machine. These wings or doors are adapted to be shifted to closed position by means oi a bar 30, con neeted to the sectors or wings by arms 2t). This bar 1s shifted back and vlorth by means of a hand-wheel 32, (fperating a pinion enga f ing teeth upon the bar 30. These wings jor doors are provided in their meeting faoes with suitable grooves ol a diameter slightly greater than the external diameter ofthe mandrel-bar 18 and serve as supports for such bar while the billet is being developed along the same. These doors or wings are adapted to be forced open b v the advancing end of the billet as it is developed along the mandrel-bar, and the mechanism employed for operating the wings or doors is coni strneted to permit this opening movement by the advancing billet. \\iings or doors 3 3, provided in their meeting' faces with g ooves V or notches ot sueh a size that the opening Fig. 2 is a side elevation ol' the same; and f.

formed by them will be a little` larger than the external diameter of the billet formed, are arranged alternately with the wings or doors These wings or doors 33 are caused to move in unison by means of geared sectors 35, as described in the application referred to,

and one of ea-eh pair ot" such sectors or one of eaeh pair o'l the. doors are connected by an rm 25-1 to a sliding bar 36, which extends backward to and alongr the part ol' the bed on which the carriage 23 moves and is provided drol-bar is connected, described in the apl with tappets 37 andBS, whereby said doors -loo may be Closed when the carriage is in itey foi'- l thereafter the carriage will strike against the Ward positionand opened when the carriage l reaches the limit ol its i'eaiwaid nidveiiient.

Additional supports for the iiiandiel-bar, which will also serve as guides as it is shifted forward t0 operative position by the earriage, are arranged intern'i'ediate of the door` of the two series ol doors. 'llieso supports and `guides aeikiiaile in the torina of Winge or doors 45, af Langed en vei'tieal axes and .have their meeting edges; inelined away from eaeh other'froin a point beliw the line of' movement of a inanlvel-ba aai it is sliil'tezl to position, thus forming V-shaped supports, affy cleaily shown in liie. 4, rl"lie inclined edges of these supports and guidesl ni'el beveled outn Wardly, as at (if, azi as to twin a bellmeuth extendingl reawai'dly, .sin thnt im the inzinrirelbar is moved forward ite end, due to the. Sag-* zo'ging' olE the bar, will strike ae'ainat these beveled faces and be guided up to the proper vertical and lateral alinement. 'l`he.-ie dooi'sor Wings 45 are ala'angfiwl on ve'iieal ehnlla and are caused to move in iiiiifeii by toothed segments 46.- The doen: are arranged to open in the direerti'tin el" movement o'lthe hillet and by thebillet as it in beine' developed alone1 ,the n'iandi'el-bai". 'lo eloiie the doom 45, any suitable mechanism may be eine` ployedmsneh, for example. as; that shown, consisting ol a bai' 47, esiniieetefl tothe dooie orto the toothed segments and adapted to be.

shifted back and 'loi'th by ineanri of a handwheel 4S, operating; a pinion 4l), engaging the teeth on the bai or an extension thereof.

-As the billet is beine' di'ivc'ilnped along therear tappet on the bar 36, thereby opening the doors 83, permitting the con l ted billet to drop onto arms 5U. is ebow; iiese arms are mounted on a sliafti, by whieli the may be Ialiilted from one side to the other, dependent upon which side of tlifamaehine the eoinplete-d billet is t0 be deliveredI as Clearly shown iii Fig. 4. any suitable means*as, for example, a lever v52, as shown in Figs. 2 and 3.

l claim herein as my inventionl. A Combination of rolls et a billet-piercing;` mill, a iiiandi'el-bar, dooie oi' wings movable lioi'izeiially to and l'ioin operative posif tion loi supporting' the billet and movable arms below the doors or wings for the discharge ol" the billet to one side of themaehine.

2. A eonibinatioii of rolls of a billet-piereing mill7 a mandrel-ban.wines or doors for sinppz'n'tiiig.;- the billet, a carriage for shifting the.I mandrel-bar, means for shiftingl the dooie oi' wings oi'ierative by the carriage and movable ai'ms below the doors or wings for the d isehaig'e of the billet.

3. A eonibination of rolls of a billet-piereine' mill, a niandrehbar, wings or doors for guiding tlie mandrel-bar to operative polai- `-tioii7 wings oi' doors foi' holding the mandrelbai' in operative positioiutlie guiding and holding doofe adapted to be shifted to open "petition by the billet, wings oidoois 'for Supporting the billet, a carriage for shifting the maiidiel-bai', means 'lioi' shifting the billet- .Supporting doors by the carriage and movable arms below the billet-supporting" doors for directing the Completed billet to the side of the maehme.

Vln testimony whereof l. have lieieunte eet my hand.

MARSHALL F'. CAPRON,

Witnesses:

Es'i'iciiic (liiilil'iiv'e, A. E. Aii,\.\is

This shaft is operated by 

